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To study the development of mitochondrial dysfunction in septic Intensive Care Unit patients with respect to the hypermetabolic inflammatory status


- candidate number28477
- NTR NumberNTR6969
- ISRCTNISRCTN no longer applicable
- Date ISRCTN created
- date ISRCTN requested
- Date Registered NTR22-jan-2018
- Secondary IDsNL63412.081.17  METC-Wageningen University
- Public TitleTo study the development of mitochondrial dysfunction in septic Intensive Care Unit patients with respect to the hypermetabolic inflammatory status
- Scientific TitleEvolution of mitochondrial dysfunction and hypermetabolic inflammatory status in septic Intensive Care Unit patients
- ACRONYMMIC-Study
- hypothesisWe expect that the development of mitochondrial dysfunction lags behind the development of the hypermetabolic inflammatory state. Additionally, we hypothesize that the aggravation of factors related to the hypermetabolic inflammatory status, such as nutrients, catabolic hormones and pro-inflammatory cytokines, associates with the degradation of mitochondrial function and dynamics, resulting in worse clinical outcomes.
- Healt Condition(s) or Problem(s) studiedMitochondrial dysfunction, Sepsis, Hypermetabolic inflammatory status
- Inclusion criteria- Sepsis originated from abdomen or respiratory system
- Admission to the ICU of Gelderse Vallei Hospital
- Signed Written Informed Consent. The ethics committee/institutional review board approved informed consent form signed by the participant or the participant’s legal representative in accordance with local regulations. Participants unable to give their written consent may only be enrolled in the study with the consent of a legally acceptable (or designated) representative. The participant must also be informed about the nature of the study to the extent compatible with his or her understanding, and should the participant become capable, he or she should personally sign and date the consent form as soon as possible.
- Exclusion criteria• Patients younger than 18 years
• Patients with a haemoglobin level lower than 5,5 mmol/lL*
• Patients referred from another ICU
• Patients with a history of solid organ or bone marrow transplant
• Patients with active autoimmune disease involving the lung, heart, liver, small or large intestine, or neuromuscular system (e.g., myasthenia gravis, multiple sclerosis) AND currently requiring systemic immunosuppressive therapy
• Patients whom experienced a significant medical or surgical event leading to hospitalization within the previous year
• Patients with a disease process (e.g., end-stage cancer) with a projected survival of less than 6 months (pre-ICU admission)
• Patients whom received treatment with chemotherapy, immunotherapy or radiotherapy within the past 12 months
• Patients with a family history of mitochondrial disease(s)
• Patients with COPD Gold-Stadium III or IV or other severe respiratory disorders (FEV1 <30% and FEV1/FVC < 0.7) (pre-ICU admission) [25]
• Patients with any stage of chronic or acute renal failure (pre-ICU admission, pre-existent SOFA 0 for this SOFA element)
• Patients with any stage of chronic or acute liver failure (pre-ICU admission, pre-existent SOFA 0 for this SOFA element)
• Patients supported with hemodialysis or continuous hemofiltration
• Patients diagnosed with diabetes Mellitus type I and II (pre ICU-admission)
• Patients not able to understand the Dutch language
• Patients currently participating in intervention research
• Patients treated with any investigational agent within 12 months prior to study treatment administration.
• Pregnant patients
• Patients who are ≤ 6 months postpartum pregnancy testing to the discretion of the attending physician
• Patients whom consume more than 25 grams of ethanol daily (>2.5 alcoholic beverages/day) [26]
• Patients with a history of drug abuse
• Patients whom received treatment with corticosteroids or other immunosuppressive medications for active autoimmune disease involving the lung, heart, liver, small or large intestine, or neuromuscular system within 3 months prior to ICU-stay NOTE: Topical, ocular, intra-articular and inhalational corticosteroids (with minimal systemic absorption) are permitted
- mec approval receivedyes
- multicenter trialno
- randomisedno
- group[default]
- Type[default]
- Studytypeobservational
- planned startdate 1-feb-2018
- planned closingdate1-jan-2019
- Target number of participants30
- InterventionsNone
- Primary outcomeMitochondrial capacity in PBMCs measured via functional respirometry.
- Secondary outcomeThe secondary study parameters are (a) parameters of hypermetabolic inflammatory status (concentrations of hormones, nutrients and cytokines in the plasma), (b) mitochondrial dynamics and autophagy and (c) data from medical records.
- TimepointsT0 = Day 0 (inclusion)
T1 = Day 1 after inclusion
T2 = Day 3 after inclusion
T3 = Day 5 after inclusion
T4 = At discharge from ICU
T5 = At discharge from hospital
- Trial web site-
- statusplanned
- CONTACT FOR PUBLIC QUERIES J. Jong, de
- CONTACT for SCIENTIFIC QUERIES J. Jong, de
- Sponsor/Initiator Wageningen University (WUR)
- Funding
(Source(s) of Monetary or Material Support)
Wageningen University, Ziekenhuis Gelderse Vallei
- Publications
- Brief summaryRationale: Sepsis is a major cause of admission to the intensive care unit (ICU) and may result in hospital death rates up to 40-60% of septic shock cases. Mitochondrial dysfunction has been demonstrated in a variety of cells in septic ICU patients, including peripheral blood mononuclear cells (PBMCs). Multiple studies have provided evidence for the association between the degree of mitochondrial dysfunction in PBMCs and the severity of sepsis and clinical outcomes. Sepsis can be defined as a hypermetabolic inflammatory state, that is characterized by a decrease in (lean) body mass and high circulating levels of catabolic stress hormones, inflammatory cytokines and nutrients. Several papers, suggest a relationship between the amount of nutrients (e.g. glucose) in the blood and severity of mitochondrial dysfunction in PBMCs and subsequently clinical outcomes. We pose the hypothesis that the degree of the hypermetabolic inflammatory status associates with the degree of mitochondrial dysfunction in PBMCs. To gain a deeper understanding of this hypothesis, we will perform consecutive measurements over time in septic ICU patients. Additionally, we will measure mitochondrial dynamics (in PBMCs), which have been shown to be essential for proper mitochondrial functioning.

Objective: The main objective is to investigate how mitochondrial function progresses over time in septic ICU patients. The secondary objectives are (a) to investigate how mitochondrial dynamics progress over time and how this is associated with mitochondrial function and (b) to investigate if and how parameters of the hypermetabolic inflammatory status are related with the progression of mitochondrial function and (c) to investigate if and how the progression of mitochondrial function/is related to physical performance and clinical outcomes.

Study design: Prospective cohort study with matched controls.

Study population: ICU patients diagnosed with sepsis (n=30) and metabolically healthy age and gender matched short-stay hospitalized patients (n=30).

Main study parameters/endpoints: The main study parameter is mitochondrial function in PBMCs. The secondary study parameters are (a) parameters of hypermetabolic inflammatory status (concentrations of hormones, nutrients and cytokines in the plasma), (b) mitochondrial dynamics and autophagy and (c) data from medical records.
- Main changes (audit trail)
- RECORD22-jan-2018 - 1-feb-2018


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